window.cvtr = window.cvtr || {};
if (!window.location.origin) {
  window.location.origin = window.location.protocol + "//" + window.location.hostname + (window.location.port ? ':' + window.location.port: '');
}

cvtr.loader = function(){
    var turl = getQueryVariable("turl"),
        wp = getQueryVariable("wp"),
        locale = getQueryVariable("locale");

    var scriptTag = document.getElementById('cvtr-form-render'),
        element = document.getElementById(scriptTag.getAttribute('data-target')),
        guid = null,
        url = scriptTag.getAttribute('data-url'),
        ourl = window.location.origin,
        hostname = window.location.hostname,
        turl = turl ? turl : window.location.href
    ;

        var cookieName = "rm_c",
  cookieTime = (60 * 24 *10),
  expiry = new Date();

if (document.cookie.indexOf(cookieName + "=") >= 0) {
  guid = getCookie(cookieName);
} else if (getUrlParameter(cookieName)) {
  guid = getUrlParameter(cookieName);
} else {
  // Set a new cookie on the client domain
  expiry.setTime(expiry.getTime() + (cookieTime * 60 * 1000)); // Ten minutes
  guid = getGuid();
  document.cookie = cookieName + "=" + guid + "; expires=" + expiry.toGMTString() + '; path=/; secure=true; SameSite=None';
}

/**
 * Returns cookie by cookie name
 *
 * @param name
 * @returns {string | undefined}
 */
function getCookie(name){
  var value = "; " + document.cookie;
  var parts = value.split("; " + name + "=");
  if (parts.length == 2) return parts.pop().split(";").shift();
}

/**
 * Creates random GUID
 *
 * @returns {string}
 */
function getGuid(){
  function s4(){
    return Math.floor((1 + Math.random()) * 0x10000)
      .toString(16)
      .substring(1);
  }

  return s4() + s4() + '-' + s4() + '-' + s4() + '-' + s4() + '-' + s4() + s4() + s4();
}

function getUrlParameter(name){
  name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
  var regex = new RegExp('[\\?&]' + name + '=([^&#]*)');
  var results = regex.exec(location.search);
  return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' '));
}

/**
 * Listens to events emitted from inside the iFrame
 */
window.addEventListener('message', function(message){
  if (message.origin.indexOf('.cvtr.io') >= 0 && typeof message.data === 'string') {
    var messageBody = {};
    try {
      messageBody = JSON.parse(message.data);
    } catch(e) {}

    if (typeof messageBody.type === 'string' && messageBody.type === 'unset_cookie') {
            var regex = new RegExp(cookieName+'\=.*', 'g');
      if (document.cookie.match(regex) !== null) {
        document.cookie = cookieName + "=;expires=Thu, 01 Jan 1970 00:00:00 GMT;secure;path=/;SameSite=None";
        window.location.reload(false);
      } else {
        parent.window.postMessage(message.data, getUrlParameter('ourl'));
      }
    }
  }
});

    if (url.indexOf('?') >= 0) {
        url += '&purl='+hostname+'&ourl='+ourl;
    } else {
        url += '?purl='+hostname+'&ourl='+ourl;
    }

    url +='&rm_c='+guid;
    url +='&turl='+ encodeURIComponent(turl);

    if (wp.length > 0) {
        url += '&wp='+wp;
    }

    if (locale.length > 0) {
        url += '&locale='+locale;
    }

    var lpAttributes = element.getAttribute('data-attributes');

    if (lpAttributes !== null && lpAttributes.length > 0) {
        lpAttributes = JSON.parse(lpAttributes);
    } else {
        lpAttributes = {};
    }

    lpAttributes.src = url;
    lpAttributes.id = 'cvtrIframe';
    if (lpAttributes.width === undefined) {
        lpAttributes.width = '100%';
    }
    if (lpAttributes.style === undefined) {
        lpAttributes.style = 'border:0;';
    }
    if (lpAttributes.id === undefined) {
        lpAttributes.style = 'border:0;';
    }
    if (lpAttributes.class === undefined) {
        lpAttributes.class = 'iframe-form';
    }
    if (lpAttributes.allowTransparency === undefined) {
        lpAttributes.allowTransparency = 'true';
    }

    if (lpAttributes.allowfullscreen === undefined) {
        lpAttributes.allowfullscreen = 'true';
    }

    if (lpAttributes.webkitallowfullscreen === undefined) {
        lpAttributes.webkitallowfullscreen = 'true';
    }

    if (lpAttributes.mozallowfullscreen === undefined) {
        lpAttributes.mozallowfullscreen = 'true';
    }

    var iframe = document.createElement('iframe');

    for (var name in lpAttributes) {
        iframe.setAttribute(name, lpAttributes[name]);
    }

    element.append(iframe);

    window.addEventListener('message', function(message){

        if (message.origin.indexOf('.cvtr.io') >= 0 && typeof message.data === 'string') {
          var messageBody = {};
          try {
            messageBody = JSON.parse(message.data);
          } catch(e) {}

                    if (typeof messageBody.type !== 'undefined' && typeof messageBody.height === 'number' && messageBody.type == 'iframe_height') {
                              document.getElementById('cvtrIframe').style.height = messageBody.height.toString() + 'px';
                        }
        }
    });
}
    window.onload = cvtr.loader;

function getQueryVariable(variable)
{
    var query = window.location.search.substring(1);
    var vars = query.split("&");
    for (var i=0;i<vars.length;i++) {
        var pair = vars[i].split("=");
        if(pair[0] == variable){return pair[1];}
    }
    return(false);
}

// Append polyfill
(function (arr) {
    arr.forEach(function (item) {
        if (item.hasOwnProperty('append')) {
            return;
        }
        Object.defineProperty(item, 'append', {
            configurable: true,
            enumerable: true,
            writable: true,
            value: function append() {
                var argArr = Array.prototype.slice.call(arguments),
                    docFrag = document.createDocumentFragment();

                argArr.forEach(function (argItem) {
                    var isNode = argItem instanceof Node;
                    docFrag.appendChild(isNode ? argItem : document.createTextNode(String(argItem)));
                });

                this.appendChild(docFrag);
            }
        });
    });
})([Element.prototype, Document.prototype, DocumentFragment.prototype]);